We consider a map-based model for neuronal bursting originally due to Chialvo [1]} and considered further in e.g. [2]}, [3]}, [4]}. The model is given by
\(\begin{split}w \mapsto & \ \bar{w} = a w - b v + c, \\v \mapsto & \ \bar{v} = v^2 \exp (w-v) + k,\end{split}\) 
